Samsung T509 Unlocked GSM Cell Phone The SGH-t509 deserves to have its own adjective, slicksleek. It embodies a range of technology that’s every bit as up-to-the- minute as its beautiful exterior. Here's the latest contender in the race to build the thinnest, most stylish phone on the planet. In fact, the Samsung t509 is one of the skinniest phones money can buy, measuring just .39 inches thick, or 10 millimeters. Amazingly, this phone also happens to pack a lot of features into its svelte frame, including Bluetooth, a VGA camera, support for EDGE high speed data, a speakerphone, and more.